Questionable relationship between cholecystectomy and colon cancer

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Abstract
The relationship between prior cholecystectomy and right‐sided colon cancer was evaluated in a case‐control study. The study population comprised 267 women with right‐sided colon cancer (cases) and 268 women with left‐sided colon cancer (controls). All patients were white females, aged between 40 and 69 years, and registered at The University of Texas M.D. Anderson Hospital and Tumor Institute between 1970 and 1982. Thirty cases (11.2%) and 21 controls (7.8%) had documented prior cholecystectomy (odds ratio 1.49, 95% confidence limits 0.83, 2.67). The temporal relationship between cholecystectomy and colon cancer and the presence of diabetes were also evaluated. The authors conclude that there is no significant relationship between prior cholecystectomy and the development of right‐sided colon cancer.

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